Jason Theodosakis, M.D., M.S., M.P.H. is a board certified physician, best-selling author, lecturer and Fellow in Preventive Medicine. He has a second medical specialty (Sports Medicine) along with Master's degrees in both Exercise Physiology and Public Health. In addition, he is a Clincial Associate Professor and the former Director of the Preventive Medicine Residency Training Program at the University of Arizona College of Medicine in Tucson.